Which sector is one of the most spectacular and controversial achievements of U.S. science in the 2nd half of the 20th century？

听力原文： From this lookout we enjoy one of the most spectacular views of San Francisco. As you can see, the city rests on a series of hills varying in altitude from sea level to 938 feet. The first permanent settlement was made at this site in 1776. For 13 years the village had fewer than one hundred inhabitants. But in 1848, with the discovery of gold, the population grew to ten thousand. The same year the name was changed from Yerba Buea to San Francisco.

By 1862 telegraph communications linked San Francisco with eastern cities, and by 1869 the first transcontinental railroad connected the Pacific coast with the Atlantic seaboard. Today San Francisco has a population of almost three million. It is the financial center of the west, and serves as the terminus for trans-Pacific steamship lines and air traffic. The port of San Francisco, which is almost 18 miles long with 42 piers, handles between five and six million tons of cargo annually.

And now, if you will look to your right, you should just be able to see the east section of the Golden Gate Bridge. The bridge, which is more than one mile long, spans the harbor from San Francisco to Marin County and the Red Wood Highway. It was completed in 1937 at a cost of 32 million dollars and is still one of the largest suspension bridges in the world.

(30)

A．Gold was discovered.

B．The transcontinental railroad was completed.

C．The Golden Gate Bridge was constructed.

D．Telegraph communications were established with the East.

听力原文： From this lookout we enjoy one of the most spectacular views of San Francisco. As you can see, the city rests on a series of hills varying in altitude from sea level to nine hundred and thirty eight feet.

The first Permanent settlement was made at this site in 1776. For thirteen years the village had fewer than one hundred inhabitants. But in 1848, with the discovery of gold, the PoPulation grew to ten thousand. The same year the name was changed from Yerba Buea to San Francisco.

By 1862 telegraph communications linked San Francisco with eastern cities, and by 1869, the first transcontinental railroad connected the Pacific coast with the Atlantic seaboard. Today San Francisco has a population of almost three million. It is the financial center of the west, and serves as the terminus for trans-Pacific steamship lines and air traffic. The Port of San Francisco which is almost eighteen miles long with forty-two Piers, handles between five and six million tons of cargo annually.

And now, if you will look to your right, you should just be able to see the east section of the Golden Gate Bridge. The bridge, which is more than one mile long, spans the harbor from San Francisco to Marin County and the Red Wood Highway. It was completed in 1937 at a cost of thirty-two million dollars and is still one of the largest suspension bridges in the world.

(30)

A．Gold was discovered.

B．The Transcontinental Railroad was completed.

C．The Golden Gate Bridge was constructed.

D．Telegraph communications were established with the East.

听力原文： From this lookout we enjoy one of the most spectacular views of San Francisco. As you can see, the city rests on a series of hills varying in altitude from sea level to nine hundred and thirty-eight feet.

The first permanent settlement was made at this site in 1776. For thirteen years the village had fewer than one hundred inhabitants. But in 1848, with the discovery of gold, the population grew to ten thousand. The same year the name was changed from Yerba Buea to San Francisco.

By 1862 telegraph communications linked San Francisco with eastern cities, and by 1869, the first transcontinental railroad connected the Pacific coast with the Atlantic seaboard. Today San Francisco has a population of almost three million. It is the financial center of the west, and serves as the terminus for trans-Pacific steam ship lines and air traffic. The port of San Francisco which is almost eighteen miles long with forty-two piers, handles between five and six million tons of cargo annually.

And now, if you will look to your right, you should just be able to see the east section of the Golden Gate Bridge. The bridge, which is more than one mile long, spans the harbor from San Francisco to Matin County and the Red Wood Highway. It was completed in 1937 at a cost of thirty-two million dollars and is still one of the largest suspension bridges in the world.

(30)

A．Gold was discovered.

B．The Transcontinental Railroad was completed.

C．The Golden Gate Bridge was constructed.

D．Telegraph communications were established with the East.

听力原文： From this lookout we enjoy one of the most spectacular views of San Francisco. As you can see, the city rests on a series of hills varying in altitude from sea level to 938 feet. The first permanent settlement was made at this site in 1776. For 13 years the village had fewer than one hundred inhabitants. But in 1848. with the discovery of gold, the population grew to ten thousand. The same year the name was changed from Yerba Buea to San Francisco.

By 1862 telegraph communications linked San Francisco with eastern cities, and by 1869 the first transcontinental railroad connected the Pacific coast with the Atlantic seaboard. Today San Francisco has a population of almost three million. It is the financial center of the west, and serves as the terminus for trans-Pacific steamship lines and air traffic. The port of San Francisco, which is almost 18 miles long with 42 piers, handles between five and six million tons of cargo annually.

And now, if you will look to your right, you should just be able to see the east section of the Golden Gate Bridge. The bridge, which is more than one mile long, spans the harbor from San Francisco to Marin County and the Red Wood Highway. It was completed in 1937 at a cost of 32 million dollars and is still one of the largest suspension bridges in the world.

(26)

A．Gold was discovered.

B．The transcontinental railroad was completed.

C．The Golden Gate Bridge was constructed.

D．Telegraph communications were established with the East.

听力原文： From this lookout we enjoy one of the most spectacular views of San Francisco. As you can see, the city rests on a series of hills varying in altitude from sea level to 938 feet. The first permanent settlement was made at this site in 1776. For 13 years the village had fewer than one hundred inhabitants. But in 1848 with the discovery of gold, the population grew to ten thousand. The same year the name was changed from Yerba Buea to San Francisco.

By 1862 telegraph communications linked San Francisco with eastern cities, and by 1869 the first transcontinental railroad connected the Pacific coast with the Atlantic seaboard. Today San Francisco has a population of almost three million. It is the financial center of the west, and serves as the terminus for trans-Pacific steamship lines and air traffic. The port of San Francisco, which is almost 18 miles long with 42 piers, handles between five and six million tons of cargo annually.

And now, if you will look to your right, you should just be able to see the east section of the Golden Gate Bridge. The bridge, which is more than one mile long, spans the harbor from San Francisco to Marin County and the Red Wood Highway. It was completed in 1937 at a cost of 32 million dollars and is still one of the largest suspension bridges in the world.

(36)

A．Gold was discovered.

B．The transcontinental railroad was completed.

C．The Golden Gate Bridge was constructed.

D．Telegraph communications were established with the East

Family time is one of the most important times in a child’s life．My family and I 56 a lot of time together，including every  57  ．Even when my father is  58  on business，my mother，my sister，and I sit down at the table to eat and 59  our day．We don’t watch television but have

60  together．As a teenager，  61   with my parents is not the most fun thing I do but I feel it is necessary．I learn from them  62 we talk, whether it is about my dad’s job or my mother’s day.

I did a little research on the “family table” 63 ．Statistics show that only 50% of  64 sit down to dinner together each night．That’s a  65 ，because researchers  66  that kids who have these regular family dinners have  67 behavior，grades，and a larger vocabulary．They are also less 68 to smoke，drink，do drugs，or have eating disorders Time with their parents makes kids more 69 and gives them a sense of 70  and safety．Plus，they learn better manners．

Now with many single-parent families or homes  71  both parents work，making time together has become harder．There have been many recent studies showing kids are“ 72  ”than they used to be．I think it’s primarily parents’  73  ．Only good things  74   taking 15 minutes away from television and five minutes from video games to have this time with your family．By spending 20 minutes with  75 ，I believe this idea of “wild kids” would decrease greatly．

56．A．spend B．pass C．take D．cost

57．A．morning B．dinner C．weekend D．party

58．A．away B．lonely C．back D．alone

59．A．welcome B memorize C．discuss D．remember

60．A．snacks B．meal C．sports D．fun

61．A．putting upB．getting upC．keeping upD．hanging out

62．A．every timeB．beforeC．some timeD．since

63．A．planB．mannerC．ideaD．project

64．A．parentsB．sistersC．brothersD．families

65．A．wonderB．shameC．miracleD．worry

66．A．supposeB．claim C．assumeD doubt

67．A．higherB．worseC．lowerD．better

68．A．unlikelyB．probablyC．likelyD．impossibly

69．A．stubbornB．nervousC．silentD．stable

70．A．belongingB．anxiety C．honorD．achievement

71．A．whoseB．whereC．thatD．which

72．A．smarterB．quickerC．wilder D．slower

73．A．dutyB．faultC．powerD．burden

74．A．come outB．contribute toC．come fromD．result in

75．A．the otherB．another oneC．the restD．each other

完型填空Climate change is one of the most fundamental challenges ever to confront humanity. Its impacts are already showing and will intensify over time ___1___ left unchecked. There is overwhelming scientific evidence, ___2___ shown in the Fourth Assessment Report (第四次评估报告的综合报告 ) of the Intergovernmental Panel on Climate Change (IPCC) (政府间气候变化专门委员会), that climate change will threaten ___3___ growth and long-term prosperity, as well as the very survival of the most vulnerable populations. IPCC projections indicate that if emissions continue to rise at their current ___4___ and are allowed to double from their pre-industrial level, the world will face an average temperature ___5___ of around 3℃this century. Serious impacts are associated ___6___ this scenario (情景), including sea-level rise, shifts in growing seasons, and an ___7___ frequency and intensity of extreme weather events such as storms, floods and droughts. The United Nations Climate Change Conference in Copenhagen in December in 2009 offers a ___8___ opportunity to step up international action on climate change. A Copenhagen deal is ___9___ the global transition into green economic growth, and, most urgently, to help the world, especially the most vulnerable, to adapt to impacts ___10___ are now inevitable.

1.A. if B. whether C. when D. which

2.A. because B. as C. while D. when

3.A. economics B. economical C. economy D. economic

4.A. speed B. rate C. pace D. rhythm

5.A. rising B. rise C. raise D. raising

6.A. with B. to C. from D. in

7.A. being increased B. increased C. increase D. increasing

8.A. history B. historical C. historic D. historically

9.A. necessary B. inevitable C. essential to D. basic

10.A. that B. of which C. who D. what

Which is one of the most basic life changes for people of all cultures?

A．Getting married.

B．Making vows.

C．Exchanging marriage diamond ring.

D．All of the above.